Many thanks for the info! Weird actions from HLDS - first WH14NS40/BH16NS40/WH16NS40 drives that are BH16NS50/55 drives in disguise, and now that! :eek:

There is 99% chance, that GH24NSC0 with "SVC Code: NSD0" is in fact GH24NSD0/D1. Well, it's time to update my HLDS table with a lot of new info.

Dropped by the computer store yesterday late-afternoon, and noticed they got a new shipment in of oem LG drives still in the original shipping box (of 10 drives).

I asked to take a look at a drive straight out of the 10-drive shipping box, and saw that they were GH24NSC0 drives with an LI00 firmware, and a manufacturing date of February 2016 with "SVC Code: NSD0".

Wonder why they're still using the "GH24NSC0" brand name + sku for these current oem drives, but which are highly likely to be GH24NSD0/D1 drives in disguise. (ie. Besides obvious explanations like laziness, etc ...).

Looking through LG's website, the GH24NSD1 model seems to only appear in the optical drive sections for a few countries, such as Japan, Italy, Netherlands, Germany, etc ...

The GH24NSD0/D1 model doesn't seem to appear in the american specific section for optical drives. In terms of non-slim internal dvd writers, only the GH24NSC0 and GH24NSB0 show up in the american specific sections (excluding the discontinued models section).

In terms of firmware, there doesn't appear to be any updates for the GH24NSC0 and GH24NSD0/D1 models.

In light of this, I wonder if the LG00, LH00, and LI00 firmwares are possibly almost bit-for-bit identical to one another (other than the name of the drive). These three firmwares appear to possibly correlated to particular models:

I looked more into the ripping behavior of my new GH24NSC0 "SVC Code: NSD0" drive, with an LI00 firmware and November 2015 manufacturing date. My direct comparison will be with my older GH24NSC0 "SVC Code: NSC0" drive, with an LK00 firmware and July 2015 manufacturing date.

I checked out some dvd movie discs which were never able to rip at full speed (12x for dual-layer discs, 16x for single layer discs) on my older LK00 firmware drive. For that matter, these same discs were never able to rip at full speed on my other dvd drives (except for my LiteOn iHAS124 F CL98 drive with an October 2015 manufacturing date).

Much to my surprise, my new LI00 firmware drive was able to rip most of these discs at full speed.

Checking these same discs again on my older LK00 firmware drive, they were not able to rip at full speed, even after ejecting and inserting the discs several times and starting again.

On my new LI00 firmware drive, it turned out reading VTS_03_2.VOB only triggered the "fatal reading behavior" two times. For the other five times, there were no reading errors. (The md5 hashes on these seven rips of VTS_03_2.VOB were consistent with these observations).

When I went back to my older LK00 firmware drive, the "fatal reading behavior" was triggered all seven times. (The md5 hashes on these seven rips of VTS_03_2.VOB were all different).

According to blackened2687's hlds table, one difference between the GH24NSC0 and GH24NSD0/D1 hardware are the respective Mediatek MT1862N and MT1862AN chips.

One might infer the differences in reading speed and "fatal reading behavior" on problematic/basketcase discs between the GH24NSC0 "SVC Code: NSC0" (LK00 firmware) and "SVC Code: NSD0" (LI00 firmware) drives, might possibly be due to the differences between the MT1862N and MT1862AN chips ?

(Tangential speculation).

Perhaps something similar might be going on in the LiteOn iHAS124 F drive differences between the CL05/CL06/CL07/CL08/C09 firmwares (drives manufactured before October 2015) and the CL98/CL99 firmwares (manufactured October 2015 and later), with respect to the "getting lost and not going to full speed behavior".

Could it be that the CL98/CL99 firmware iHAS124 F drive manufactured in October 2015 (and later), might possibly have an MT1862AN chip?

In contrast according to blackened2687's liteon table, the iHAS124 F drives with the CL05/CL06/CL07/CL08/C09 firmwares manufactured before October 2015, had an MT1862N chip.

(More speculation).

For that matter, wonder if the new Samsung SH-224GB drive might also be using an MT1862AN chip?

At this point, I don't even know where to start in speculating when the next Mediatek chip will be released. Whether (hypothetically) an "MT1862BN" revision or a new "MT1842N" series (extrapolating).

Mediatek's web site has very little to no insightful information, other than general marketing type stuff.

From the general trend over the past few years, it seems like LG and Samsung have been cranking out a new drive model every 12 months or so. This is probably also reflective of Mediatek cranking out new chip series/revisions every 12 months or so, almost like clockwork.

If it continues to run like clockwork, then perhaps LG's engineers already have their hands on a new (hypothetical) "MT1862BN" or "MT1842N" chip, and are already at work designing a new drive and writing a new firmware for it, ready to be manufactured this coming July 2016 ?

Hello dear friends!I have an internal HL-DT-ST DVDRAM GH24NSD1 LG drive manufactured December 2015. The firmware is LE00. Does any of you know if there is a new firmware available?Many thanks in advance!

Hello dear friends!I have an internal HL-DT-ST DVDRAM GH24NSD1 LG drive manufactured December 2015. The firmware is LE00. Does any of you know if there is a new firmware available?Many thanks in advance!

I have The Same DVDR and it With the same firmware and a have very-very BAD Burns With Tayo Yuden Media. With Verbatim and TDK have no problems! Very Strange